Creating a Step Loop 

Use

You use this procedure to create and modify step loops in the alphanumeric mode of the Screen Painter.

Prerequisites

The elements that form the loop already exist. Valid objects are templates, text fields, radio buttons, checkboxes and pushbuttons.

Procedure

...

       1.      Position the cursor on the element that will form the upper left-hand corner of the loop and choose Edit ® Loop.

The Change Loop Definition screen appears.

You can create several separate loop blocks on one screen, but nesting is not allowed.

       2.      Position your cursor on the lower right-hand corner of the final element of the loop and choose Edit ® Mark End of Loop.

       3.      Save your changes.

The system automatically generates a fixed loop block with two repetitions. You can now edit the step loop or choose Back to return to the full-screen editor.

       4.      To edit an existing loop block, select it and choose Edit ® Loop.

The following functions for editing a step loop are available:

Function	Description
End line of loop	Defines the length of the loop area
Variable loop	Defines a variable loop. The system uses variable loops to dynamically adjust the number of repetitions to the size of the current window. If the screen includes several loop blocks, you can define only one of them as variable. The maximum number of lines is 200. The system always stores the current number of loop blocks in the system field SY-LOOPC.
Dissolve	Dissolves the loop
Move loop	Moves the loop to a new location.

In the definition block you can change element attributes, define or delete elements but you cannot insert or delete lines within the loop block. You can copy elements from outside to the loop block and vice versa. In both cases, the system adapts the element attributes accordingly.